how to open winrar without password on my computer

http://www.reset-password.net/wp-content/uploads/2012/11/open-winrar-without-password.jpgIts in a winrar archive and i cant open it because of a password that i don’t know, its a file that i need really bad and i cant find the password, are there ways to hack winrar so i can get the file extracted and view it, are there any ways to open winrar without password ?

I don’t know what to complete， so search yahoo and google for “open password protected rar”, while i find RAR Password Recovery software can get around winrar password, i chose to try that.